?url_ver=Z39.88-2004&rft_id=2026028&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Nagy&rft.au=+Nagy+G%C3%A1bor&rft.aufirst=G%C3%A1bor&rft.pages=391-396&rft.volume=49&rft.issn=0196-8858&rft.title=ADVANCES+IN+APPLIED+MATHEMATICS&rft.date=2012&rft.issue=3%2F5&rft.atitle=A+combinatorial+proof+of+Shapiro's+Catalan+convolution&rft.genre=article